Support for adding authentication realms to domains.cfg

[jfpanisset]

This branch somewhat addresses issue #23 with support for adding non-default authentication domains / realms to /etc/pve/domains.cfg in a similar fashion to the way /etc/pve/datacenter.cfg is handled. This code overwrites the configuration file directly, it would be preferable if a true Python module were written to use the domains REST API but for now this appears to be sufficient to add Active Directory authentication to login to the web UI.

Signed-off-by: Jean-Francois Panisset panisset@gmail.com

[lae]

Please rebase this against develop and add an appropriate role variable underneath tests/group_vars/all, as well as some tasks to validate that domains were configured correctly via the API under tests/test.yml

[jfpanisset]

Rebased against develop, looking at other requests.

[lae]

Thanks for rebasing. It looks like the changeset is incomplete (other than my requests above). pve_domains_cfg needs to be given as a default in defaults/main.yml, otherwise it breaks deployment on the Check domains.cfg exists task:

https://travis-ci.org/github/lae/ansible-role-proxmox/jobs/690697670#L2120